Yen Carry Unwind Exposes Equity Market Vulnerabilities

A sharp rally in the Japanese yen has far-reaching implications for global financial markets. The recent appreciation of the yen could trigger a broader liquidity shock, forcing investors to unwind crowded and leveraged positions. This is particularly concerning for equity markets, where strong fundamentals may not be enough to prevent initial forced selling.

The current interest-rate gap between the US and Japan still makes carry attractive, but the direction is becoming less favorable as the Bank of Japan normalizes policy. Equity investors face the risk of forced deleveraging, with funds facing losses or higher margin requirements potentially selling their most liquid and profitable holdings first.

Five areas that may be vulnerable to a yen carry unwind include AI semiconductors and memory, expensive software and momentum stocks, Japanese exporters, small caps and leveraged cyclicals, and REITs and rate-sensitive equities. Semiconductors combine strong fundamentals with high expectations and crowded ownership, making them an obvious source of liquidity during forced selling.

A weaker dollar adds another layer to the complexity, as a yen rally does not automatically mean broad US-dollar weakness. Non-US investors should review their US exposure, particularly if the move develops into a wider decline in the dollar.